Sony 1946

Sony Corporation is the electronics business unit and the parent company of the Sony Group, which is engaged in business through its five operating segments; electronics, games, entertainment (motion pictures and music), financial services and other. These make Sony one of the most comprehensive entertainment companies in the world. Sony's principal business operations include Sony Corporation (Sony Electronics in the U.S.), Sony Pictures Entertainment, Sony Computer Entertainment, Sony Music Entertainment, Sony Ericsson, and Sony Financial. Founded 1946 as Tokyo Telecommunications Engineering Corporation; 1955 produced first Japanese commercial transistor radio; launched Betamax video cassette recording system in 1975; launched Walkman personnel stereo system in 1979; launched Handycam video products in 1985; launched PlayStation games console range in 1994.